package chat.server.call;
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import java.io.UnsupportedEncodingException;
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import java.math.BigDecimal;
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import java.net.URLDecoder;
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import java.net.URLEncoder;
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import java.util.Date;
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import java.util.List;
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public class StringBuilderJSONWriter implements IJSONWriter {
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private StringBuilder content;
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private boolean empty;
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private boolean encode;
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private boolean nameReady;
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private boolean autoLowerName;
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public StringBuilderJSONWriter() {
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content = new StringBuilder();
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empty = true;
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encode = true;
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nameReady = false;
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autoLowerName = false;
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}
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public void beginObject() {
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if (!nameReady && !empty) {
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content.append(", ");
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}
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content.append("{");
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empty = true;
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nameReady = false;
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}
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public void beginObject(String name) {
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if (!empty) {
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content.append(", ");
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}
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if (name != null) {
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content.append("\"" + toLower(name) + "\": {");
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}
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else {
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content.append("{");
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}
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empty = true;
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}
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public void endObject() {
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content.append("}");
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empty = false;
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nameReady = false;
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}
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public void beginArray() {
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if (!nameReady && !empty) {
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content.append(", ");
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}
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content.append("[");
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empty = true;
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nameReady = false;
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}
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public void beginArray(String name) {
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if (!empty) {
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content.append(", ");
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}
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if (name != null) {
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content.append("\"" + toLower(name) + "\": [");
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}
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else {
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content.append("[");
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}
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empty = true;
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nameReady = false;
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}
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public void endArray() {
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content.append("]");
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empty = false;
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nameReady = false;
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}
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public void write(String name, String value) {
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if (!empty) {
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content.append(", ");
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}
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content.append("\"" + toLower(name) + "\": \"" + encodeValue(value) + "\"");
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empty = false;
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}
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public void write(String name, String value, boolean needEncode) {
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if (!empty) {
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content.append(", ");
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}
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if (needEncode) {
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content.append("\"" + toLower(name) + "\":\"" + encodeValue(value) + "\"");
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}
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else {
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content.append("\"" + toLower(name) + "\":\"" + value + "\"");
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}
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empty = false;
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}
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public void write(String name, Integer value) {
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if (!empty) {
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content.append(", ");
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}
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content.append("\"" + toLower(name) + "\": " + String.valueOf(value));
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empty = false;
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}
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public void write(String name, Double value) {
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if (!empty) {
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content.append(", ");
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}
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content.append("\"" + toLower(name) + "\": " + String.valueOf(value));
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empty = false;
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}
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public void write(String name, Long value) {
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if (!empty) {
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content.append(", ");
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}
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content.append("\"" + toLower(name) + "\": " + String.valueOf(value));
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empty = false;
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}
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public void write(String name, BigDecimal value) {
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if (!empty) {
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content.append(", ");
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}
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content.append("\"" + toLower(name) + "\": " + String.valueOf(value));
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empty = false;
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}
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public void write(String name, boolean value) {
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if (!empty) {
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content.append(", ");
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}
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content.append("\"" + toLower(name) + "\": " + (value ? "true" : "false"));
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empty = false;
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}
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public void write(String name, Date value) {
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if (!empty) {
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content.append(", ");
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}
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content.append("\"" + toLower(name) + "\": \"" + value + "\"");
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empty = false;
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}
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public void write(String name, IJsonProvider jsonProvider) {
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writeName(name);
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if (jsonProvider == null) {
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writeNull();
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return;
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}
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jsonProvider.writeJSONObject(this);
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}
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public void write(String name, List<? extends IJsonProvider> list) {
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writeName(name);
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if (list == null) {
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writeNull();
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return;
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}
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beginArray();
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for (IJsonProvider json: list) {
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json.writeJSONObject(this);
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}
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endArray();
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}
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public void write(IJsonProvider jsonProvider) {
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if (jsonProvider == null) {
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writeNull();
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return;
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}
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jsonProvider.writeJSONObject(this);
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}
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public void writeJSON(String name, String json) {
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if (!empty) {
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content.append(", ");
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}
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if (name != null) {
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content.append("\"" + toLower(name) + "\": " + json);
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}
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else {
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content.append(json);
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}
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empty = false;
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}
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public void writeNull(String name) {
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if (!empty) {
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content.append(", ");
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}
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if (name != null) {
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content.append("\"" + toLower(name) + "\": null");
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}
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else {
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content.append("null");
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}
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empty = false;
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nameReady = false;
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}
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public void writeName(String name) {
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if (!empty) {
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content.append(", ");
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}
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if (name != null) {
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content.append("\"" + toLower(name) + "\": ");
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}
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nameReady = true;
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}
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public void writeValue(String value) {
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content.append("\"" + encodeValue(value) + "\"");
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empty = false;
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nameReady = false;
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}
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public void writeValue(int value) {
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content.append(String.valueOf(value));
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empty = false;
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nameReady = false;
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}
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public void writeValue(BigDecimal value) {
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content.append(String.valueOf(value));
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empty = false;
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nameReady = false;
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}
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public void writeValue(boolean value) {
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content.append(value ? "true" : "false");
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empty = false;
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nameReady = false;
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}
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public void writeValue(Date value) {
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content.append("\"" + value + "\"");
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empty = false;
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nameReady = false;
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}
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public void writeNull() {
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content.append("null");
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empty = false;
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nameReady = false;
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}
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public void writeJSON(String json) {
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if (!empty) {
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content.append(", ");
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}
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content.append(json);
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empty = false;
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nameReady = false;
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}
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private String toLower(String name) {
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if (name == null) {
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return "empty";
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}
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if (autoLowerName) {
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return name.toLowerCase();
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}
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else {
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return name;
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}
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}
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private String encodeValue(String value) {
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if (!encode) {
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return value;
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}
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String result = "";
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if (value == null) {
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return result;
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}
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try {
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result = URLEncoder.encode(value, "UTF-8");
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result = result.replace("+", "%20");
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}
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catch (Exception e) {
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result = value;
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}
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return result;
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}
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public boolean isEncode() {
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return encode;
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}
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public void setEncode(boolean encode) {
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this.encode = encode;
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}
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@Override
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public String encode(String value) {
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try {
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String result = URLEncoder.encode(value, "UTF-8");
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return result;
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}
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catch (UnsupportedEncodingException e) {
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}
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return value;
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}
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public StringBuilder getContent() {
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return content;
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}
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public static void main(String[] args) throws UnsupportedEncodingException {
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String value = "%E9%82%B5%E5%98%89%E7%A2%A7%E9%92%B0";
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System.out.println(URLDecoder.decode(value, "UTF-8"));
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}
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}
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